Welding robot



FIG. 1 is a front elevational view of a welding robot, showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG 7 is a front, top and right side perspective view thereof. 

The ornamental design for a welding robot, substantially as shown. 